一种航空货舱门机电作动器加速寿命试验方法

By decomposing the service profile and stress profile of the electromechanical actuator of the aircraft cargo door, accelerated life tests were designed. Combined with room temperature loading and comprehensive environmental tests, the problem of resource consumption in the existing technology was solved, and efficient evaluation of life and reliability indicators was achieved, shortening the development cycle and reducing costs.

CN117401181BActive Publication Date: 2026-07-17BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
Filing Date
2023-10-19
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies consume a lot of manpower, material resources, and financial resources in accelerated life testing of electromechanical actuators for aircraft cargo doors, and it is difficult to effectively evaluate product life indicators, resulting in long development cycles and high costs.

Method used

By determining the product service profile and breaking it down to the highest component level, and combining stresses such as temperature, humidity, vibration, load, voltage, and frequency, an accelerated stress profile is designed, and room temperature loading and comprehensive environmental tests are conducted to evaluate the test data.

Benefits of technology

This approach enables the accurate assessment of the lifespan and reliability of cargo door electromechanical actuators while shortening the development cycle and reducing costs, thereby improving testing efficiency.

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Abstract

一种航空货舱门机电作动器加速寿命试验方法,包括:确定产品服役剖面;根据产品服役剖面确定产品应力剖面;分解产品寿命件组成,至有寿命模型的最高部件层级;根据寿命模型的最高部件层级和产品应力剖面,确定加速应力剖面;开展试验测试和监测;对试验数据进行处理并评估。本发明提出一种基于关键部件寿命理论公式和环境加速模型的加速寿命试验方法,从飞机运营剖面假设开始,逐步分解至作动器寿命部件及应力影响类型,最后选择温度、湿度、振动、载荷、电压、频次作为加速应力,结合常温加载耐久试验和综合环境试验,实现了产品较为全面的加速寿命试验设计。
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